US20140201559A1 - Control system and method for fans - Google Patents

Control system and method for fans Download PDF

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Publication number
US20140201559A1
US20140201559A1 US14158744 US201414158744A US2014201559A1 US 20140201559 A1 US20140201559 A1 US 20140201559A1 US 14158744 US14158744 US 14158744 US 201414158744 A US201414158744 A US 201414158744A US 2014201559 A1 US2014201559 A1 US 2014201559A1
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Prior art keywords
power
information
corresponding
plurality
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US14158744
Inventor
Li-Wen Chang
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Hon Hai Precision Industry Co Ltd
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Hon Hai Precision Industry Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3058Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
    • G06F11/3062Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations where the monitored property is the power consumption
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/20Cooling means
    • G06F1/206Cooling means comprising thermal management
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20209Thermal management, e.g. fan control
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/20836Thermal management, e.g. server temperature control
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3003Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3044Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is the mechanical casing of the computing system

Abstract

A control system comprises a power distribution unit (PDU), a number of fan modules, a processing module, and a storage module. The PDU comprises a number of power-output terminals. The storage module comprises a number of programs to be executed by the processing unit. The storage module obtains power information output by the power-output terminals, and obtains corresponding control information from a mapping unit according to the power information. The storage module further generates a pulse width modulation (PWM) signal corresponding to the control information, and outputs the PWM signal to a corresponding fan module.

Description

    BACKGROUND
  • 1. Technical Field
  • The present disclosure relates to a control system for fans.
  • 2. Description of Related Art
  • A server cabinet may comprise a plurality of servers, and a number of fans for dissipating heat generated by the servers. A number of temperature sensors are configured to sense a temperature of each server, and rotation speeds of the fans are controlled according to the sensed temperatures. However, temperature sensors are expensive.
  • Therefore, there is room for improvement in the art.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Many aspects of the present disclosure can be better understood with reference to the following drawing(s). The components in the drawing(s) are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawing(s), like reference numerals designate corresponding parts throughout the several views.
  • FIG. 1 is a schematic diagram of an embodiment of a control system for fans.
  • FIG. 2 is a block diagram of an embodiment of a main controller of the control system of FIG. 1.
  • FIG. 3 is flowchart of an embodiment of a control method for fans.
  • DETAILED DESCRIPTION
  • The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”
  • FIGS. 1 and 2 show an embodiment of a control system. The control system comprises a main controller 10, a plurality of fan modules, such as a first fan module 30 and a second fan module 90, a power distribution unit (PDU) 40, and a plurality of servers 200 located in a plurality of server cabinets, such as a first server cabinet 20 and a second server cabinet 80. The main controller 10 is electrically connected to the plurality of fan modules and the PDU 40. The PDU 40 is electrically connected to the plurality of servers 200. The main controller 10 comprises a processing module 107 and a storage module 104. The processing module 107 controls rotation speeds of the fan modules according to detected powers of the PDU 40, thereby dissipating heat generated by the plurality of servers 200. In the illustrated embodiment, each fan module comprises a plurality of fans 300. Each fan module is configured to dissipate heat generated by the servers 200 of one corresponding server cabinet 80. For example, the first fan module 30 is configured to dissipate heat generated by servers 200 of the first server cabinet 20, and the second fan module 90 is configured to dissipate heat generated by servers 200 of the second server cabinet 80.
  • The PDU 40 comprises a plurality of power-output terminals, such as a first power-output terminal 50 and a second power-output terminal 60. The PDU 40 outputs corresponding power to the first and second server cabinets 20 and 80 through the first and second power-output terminals 50 and 60, respectively.
  • The processing module 107 is coupled to the storage module 104. The storage module 104 stores a plurality of programs to be executed by the processing module 107. The storage module 104 stores a transmitting unit 100, a detecting unit 102, a mapping unit 105, and an outputting unit 106.
  • The transmitting unit 100 obtains power information that the PDU 40 outputs to the first and second server cabinets 20 and 80 through the first and second power-output terminals 50 and 60, respectively.
  • The mapping unit 105 comprises control information associated with the power information of the corresponding power-output terminals. For example, the mapping unit 105 comprises first control information associated with first power information of the first power-output terminal 50, second control information associated with second power information of the first power-output terminal 50, and third control information associated with third power information of the second power-output terminal 60.
  • The detecting unit 102 obtains the corresponding control information from the mapping unit 105 according to the power information. In the embodiment, the different control information corresponds to pulse width modulation (PWM) signals having different duty cycles.
  • The outputting unit 106 outputs the PWM signals to the fan modules to dissipate heat generated by the corresponding server cabinets.
  • For example, when the power detecting unit 102 obtains the first power information from the first power-output terminal 50, the power detecting unit 102 obtains the first control information from the mapping unit 105, and generates the PWM signal corresponding to the first control information. The outputting unit 106 outputs the PWM signal generated by the power detecting unit 102 to the first fan module 30.
  • FIG. 3 shows an embodiment of a control method for fans. The control method comprises steps as described below.
  • In step S1, the detecting unit 102 detects the power outputted by each power-output terminal.
  • In step S2, the power detecting unit 102 obtains the corresponding control information from the mapping unit 105 according to the power information, and generates the PWM signal corresponding to the control information.
  • In step S3, the outputting unit 106 outputs the PWM signal generated by the power detecting unit 102 to the corresponding fan module.
  • While the disclosure has been described by way of example and in terms of a preferred embodiment, it is to be understood that the disclosure is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements as would be apparent to those skilled in the art. Therefore, the range of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.

Claims (4)

    What is claimed is:
  1. 1. A control system, comprising:
    a plurality of servers;
    a plurality of fan modules each configured to dissipate heat generated by one or more servers;
    a power distribution unit (PDU) comprising a plurality of power-output terminals providing power for the one or more servers; and
    a main controller comprising:
    a processing module; and a storage module coupled to the processing module, and comprising a plurality of programs to be executed by the processing module, wherein the storage module comprises:
    a transmitting unit obtaining detected power information of the plurality of power-output terminals;
    a mapping unit storing control information in association with the power information of each power-output terminal;
    a detecting unit obtaining corresponding control information from the mapping unit according to the power information, and generating a pulse width modulation (PWM) signal corresponding to the control information; and
    an outputting unit outputting the PWM signal generated by the power detecting unit to the corresponding fan module.
  2. 2. The control system of claim 1, wherein the power detecting unit generates the PWM signal with different duty cycle.
  3. 3. A control method, comprising:
    obtaining power information of a plurality of power-output terminals of a power distribution unit (PDU);
    obtaining corresponding control information from a mapping unit according to the power information, wherein the mapping unit stores control information in association with power information of the corresponding power-output terminal;
    generating a pulse width modulation (PWM) signal corresponding to the control information; and;
    outputting the PWM signal to a corresponding fan module.
  4. 4. The control method of claim 3, wherein the PWM signal has different duty cycle.
US14158744 2013-01-17 2014-01-17 Control system and method for fans Abandoned US20140201559A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW102101853 2013-01-17
TW102101853 2013-01-17

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US20140201559A1 true true US20140201559A1 (en) 2014-07-17

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US14158744 Abandoned US20140201559A1 (en) 2013-01-17 2014-01-17 Control system and method for fans

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107084148A (en) * 2017-07-02 2017-08-22 郑州云海信息技术有限公司 Fan control device, system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6643128B2 (en) * 2001-07-13 2003-11-04 Hewlett-Packard Development Company, Lp. Method and system for controlling a cooling fan within a computer system
US20090167228A1 (en) * 2007-12-27 2009-07-02 Chu Te Chung Apparatus, system, and method for controlling speed of a cooling fan
US8159160B2 (en) * 2008-12-30 2012-04-17 International Business Machines Corporation Apparatus, system, and method for improved fan control in a power supply
US8416565B1 (en) * 2010-09-20 2013-04-09 Amazon Technologies, Inc. Bracket for rack mounted power distribution unit
US9110476B2 (en) * 2012-06-20 2015-08-18 International Business Machines Corporation Controlled cooling of an electronic system based on projected conditions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6643128B2 (en) * 2001-07-13 2003-11-04 Hewlett-Packard Development Company, Lp. Method and system for controlling a cooling fan within a computer system
US20090167228A1 (en) * 2007-12-27 2009-07-02 Chu Te Chung Apparatus, system, and method for controlling speed of a cooling fan
US8159160B2 (en) * 2008-12-30 2012-04-17 International Business Machines Corporation Apparatus, system, and method for improved fan control in a power supply
US8416565B1 (en) * 2010-09-20 2013-04-09 Amazon Technologies, Inc. Bracket for rack mounted power distribution unit
US9110476B2 (en) * 2012-06-20 2015-08-18 International Business Machines Corporation Controlled cooling of an electronic system based on projected conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107084148A (en) * 2017-07-02 2017-08-22 郑州云海信息技术有限公司 Fan control device, system and method

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHANG, LI-WEN;REEL/FRAME:032000/0464

Effective date: 20140117